Re: [PATCH 01/39] drm/i915: add display sub-struct to drm_i915_private

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On Thu, Aug 11, 2022 at 06:07:12PM +0300, Jani Nikula wrote:
In another long-overdue cleanup, add a display sub-struct to
drm_i915_private, and start moving display related members there. Start
with display funcs that need a rename anyway to not collide with the new
display member.

Add a new header under display/ for defining struct intel_display.

Rename struct drm_i915_display_funcs to intel_display_funcs while at it.

Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c  | 28 +++++++-------
.../gpu/drm/i915/display/intel_display_core.h | 38 +++++++++++++++++++
.../drm/i915/display/intel_modeset_setup.c    |  2 +-
.../drm/i915/display/intel_plane_initial.c    |  2 +-
drivers/gpu/drm/i915/i915_drv.h               | 21 ++--------
5 files changed, 57 insertions(+), 34 deletions(-)
create mode 100644 drivers/gpu/drm/i915/display/intel_display_core.h

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index f143adefdf38..24ab1501beea 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4144,7 +4144,7 @@ bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state)
	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
	struct drm_i915_private *i915 = to_i915(crtc->base.dev);

-	if (!i915->display->get_pipe_config(crtc, crtc_state))
+	if (!i915->display.funcs.crtc->get_pipe_config(crtc, crtc_state))
		return false;

	crtc_state->hw.active = true;
@@ -7119,7 +7119,7 @@ static void intel_enable_crtc(struct intel_atomic_state *state,

	intel_crtc_update_active_timings(new_crtc_state);

-	dev_priv->display->crtc_enable(state, crtc);
+	dev_priv->display.funcs.crtc->crtc_enable(state, crtc);

	if (intel_crtc_is_bigjoiner_slave(new_crtc_state))
		return;
@@ -7198,7 +7198,7 @@ static void intel_old_crtc_state_disables(struct intel_atomic_state *state,
	 */
	intel_crtc_disable_pipe_crc(crtc);

-	dev_priv->display->crtc_disable(state, crtc);
+	dev_priv->display.funcs.crtc->crtc_disable(state, crtc);

lgtm. Regarding names: it's a little weird to have "crtc doubled in the funcs.crtc->crtc_
and it not being consistent accross all functions


	crtc->active = false;
	intel_fbc_disable(crtc);
	intel_disable_shared_dpll(old_crtc_state);
@@ -7586,7 +7586,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
	}

	/* Now enable the clocks, plane, pipe, and connectors that we set up. */
-	dev_priv->display->commit_modeset_enables(state);
+	dev_priv->display.funcs.crtc->commit_modeset_enables(state);

	intel_encoders_update_complete(state);

@@ -8317,7 +8317,7 @@ static const struct drm_mode_config_funcs intel_mode_funcs = {
	.atomic_state_free = intel_atomic_state_free,
};

-static const struct drm_i915_display_funcs skl_display_funcs = {
+static const struct intel_display_funcs skl_display_funcs = {
	.get_pipe_config = hsw_get_pipe_config,
	.crtc_enable = hsw_crtc_enable,
	.crtc_disable = hsw_crtc_disable,
@@ -8325,7 +8325,7 @@ static const struct drm_i915_display_funcs skl_display_funcs = {
	.get_initial_plane_config = skl_get_initial_plane_config,
};

-static const struct drm_i915_display_funcs ddi_display_funcs = {
+static const struct intel_display_funcs ddi_display_funcs = {
	.get_pipe_config = hsw_get_pipe_config,
	.crtc_enable = hsw_crtc_enable,
	.crtc_disable = hsw_crtc_disable,
@@ -8333,7 +8333,7 @@ static const struct drm_i915_display_funcs ddi_display_funcs = {
	.get_initial_plane_config = i9xx_get_initial_plane_config,
};

-static const struct drm_i915_display_funcs pch_split_display_funcs = {
+static const struct intel_display_funcs pch_split_display_funcs = {
	.get_pipe_config = ilk_get_pipe_config,
	.crtc_enable = ilk_crtc_enable,
	.crtc_disable = ilk_crtc_disable,
@@ -8341,7 +8341,7 @@ static const struct drm_i915_display_funcs pch_split_display_funcs = {
	.get_initial_plane_config = i9xx_get_initial_plane_config,
};

-static const struct drm_i915_display_funcs vlv_display_funcs = {
+static const struct intel_display_funcs vlv_display_funcs = {
	.get_pipe_config = i9xx_get_pipe_config,
	.crtc_enable = valleyview_crtc_enable,
	.crtc_disable = i9xx_crtc_disable,
@@ -8349,7 +8349,7 @@ static const struct drm_i915_display_funcs vlv_display_funcs = {
	.get_initial_plane_config = i9xx_get_initial_plane_config,
};

-static const struct drm_i915_display_funcs i9xx_display_funcs = {
+static const struct intel_display_funcs i9xx_display_funcs = {
	.get_pipe_config = i9xx_get_pipe_config,
	.crtc_enable = i9xx_crtc_enable,
	.crtc_disable = i9xx_crtc_disable,
@@ -8372,16 +8372,16 @@ void intel_init_display_hooks(struct drm_i915_private *dev_priv)
	intel_dpll_init_clock_hook(dev_priv);

	if (DISPLAY_VER(dev_priv) >= 9) {
-		dev_priv->display = &skl_display_funcs;
+		dev_priv->display.funcs.crtc = &skl_display_funcs;
	} else if (HAS_DDI(dev_priv)) {
-		dev_priv->display = &ddi_display_funcs;
+		dev_priv->display.funcs.crtc = &ddi_display_funcs;
	} else if (HAS_PCH_SPLIT(dev_priv)) {
-		dev_priv->display = &pch_split_display_funcs;
+		dev_priv->display.funcs.crtc = &pch_split_display_funcs;
	} else if (IS_CHERRYVIEW(dev_priv) ||
		   IS_VALLEYVIEW(dev_priv)) {
-		dev_priv->display = &vlv_display_funcs;
+		dev_priv->display.funcs.crtc = &vlv_display_funcs;
	} else {
-		dev_priv->display = &i9xx_display_funcs;
+		dev_priv->display.funcs.crtc = &i9xx_display_funcs;
	}

	intel_fdi_init_hook(dev_priv);
diff --git a/drivers/gpu/drm/i915/display/intel_display_core.h b/drivers/gpu/drm/i915/display/intel_display_core.h
new file mode 100644
index 000000000000..aafe548875cc
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_core.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef __INTEL_DISPLAY_CORE_H__
+#define __INTEL_DISPLAY_CORE_H__
+
+#include <linux/types.h>
+
+struct intel_atomic_state;
+struct intel_crtc;
+struct intel_crtc_state;
+struct intel_initial_plane_config;
+
+struct intel_display_funcs {

in the same line as comment above. Maybe we could give this struct a
better name? Because it's already inside a intel_display.funcs.crtc

display->funcs.crtc->get_pipe_config()
display->funcs.crtc->get_initial_plane_nfig()
display->funcs.crtc->enable()
display->funcs.crtc->disable()
display->funcs.crtc->commit_modeset_enables()

and then call this `struct intel_crtc_funcs`.

This can be done later as this commit itself is basically moving things
with the same name inside a substruct.


Reviewed-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>

Lucas De Marchi



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